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In a normal respiratory cycle the volume of air that moves into and out of the...

In a normal respiratory cycle the volume of air that moves into and out of the lungs is about 502 mL. The reserve and residual volumes of air that remain in the lungs occupy about 2045 mL and a single respiratory cycle for an average human takes about 4 seconds. Find a model for the total volume of air V(t) in the lungs as a function of time.

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